fails:BigDecimal#% returns self modulo other
fails:BigDecimal#% returns a [Float value] when the argument is Float
fails:BigDecimal#% does NOT raise ZeroDivisionError if other is zero
fails:BigDecimal#modulo returns self modulo other
fails:BigDecimal#modulo returns a [Float value] when the argument is Float
fails:BigDecimal#modulo does NOT raise ZeroDivisionError if other is zero
